drm/nouveau/fb/ga102-: construct vidmem heap via new gp102 paths

No need for custom implementation anymore.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Karol Herbst <kherbst@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230525003106.3853741-4-skeggsb@gmail.com

drivers/gpu/drm/nouveau/nvkm/subdev/fb/Kbuild

@@ -56,7 +56,6 @@ nvkm-y += nvkm/subdev/fb/ramgm107.o
 nvkm-y += nvkm/subdev/fb/ramgm200.o
 nvkm-y += nvkm/subdev/fb/ramgp100.o
 nvkm-y += nvkm/subdev/fb/ramgp102.o
-nvkm-y += nvkm/subdev/fb/ramga102.o
 nvkm-y += nvkm/subdev/fb/sddr2.o
 nvkm-y += nvkm/subdev/fb/sddr3.o
 nvkm-y += nvkm/subdev/fb/gddr3.o

drivers/gpu/drm/nouveau/nvkm/subdev/fb/ga102.c

@@ -24,6 +24,12 @@
 
 #include <engine/nvdec.h>
 
+static u64
+ga102_fb_vidmem_size(struct nvkm_fb *fb)
+{
+	return (u64)nvkm_rd32(fb->subdev.device, 0x1183a4) << 20;
+}
+
 static int
 ga102_fb_oneinit(struct nvkm_fb *fb)
 {
@@ -43,7 +49,8 @@ ga102_fb = {
 	.init_page = gv100_fb_init_page,
 	.init_unkn = gp100_fb_init_unkn,
 	.sysmem.flush_page_init = gf100_fb_sysmem_flush_page_init,
-	.ram_new = ga102_ram_new,
+	.vidmem.size = ga102_fb_vidmem_size,
+	.ram_new = gp102_ram_new,
 	.default_bigpage = 16,
 	.vpr.scrub_required = tu102_fb_vpr_scrub_required,
 	.vpr.scrub = gp102_fb_vpr_scrub,

drivers/gpu/drm/nouveau/nvkm/subdev/fb/ram.h

@@ -71,5 +71,4 @@ int gm107_ram_new(struct nvkm_fb *, struct nvkm_ram **);
 int gm200_ram_new(struct nvkm_fb *, struct nvkm_ram **);
 int gp100_ram_new(struct nvkm_fb *, struct nvkm_ram **);
 int gp102_ram_new(struct nvkm_fb *, struct nvkm_ram **);
-int ga102_ram_new(struct nvkm_fb *, struct nvkm_ram **);
 #endif

drivers/gpu/drm/nouveau/nvkm/subdev/fb/ramga102.c

-/*
- * Copyright 2021 Red Hat Inc.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
- * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
- * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
- * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
- * OTHER DEALINGS IN THE SOFTWARE.
- */
-#include "ram.h"
-
-#include <subdev/bios.h>
-#include <subdev/bios/init.h>
-#include <subdev/bios/rammap.h>
-
-static const struct nvkm_ram_func
-ga102_ram = {
-};
-
-int
-ga102_ram_new(struct nvkm_fb *fb, struct nvkm_ram **pram)
-{
-	struct nvkm_device *device = fb->subdev.device;
-	enum nvkm_ram_type type = nvkm_fb_bios_memtype(device->bios);
-	u32 size = nvkm_rd32(device, 0x1183a4);
-
-	return nvkm_ram_new_(&ga102_ram, fb, type, (u64)size << 20, pram);
-}